电测与仪表2017，Vol.54Issue(15)：113-119,7.
一种改进型扰动观察法在最大功率点跟踪中的应用
An improved perturbation and observation method used in maximum power point tracking control of PV generation system
于子捷 1魏晨曦 1田芳芳 1胡骢 1耿乙文1
作者信息
- 1. 中国矿业大学 信息与电气工程学院,江苏 徐州 221008
- 折叠
摘要
Abstract
In order to improve the output efficiency of PV generation system, an effective maximum power point tracking method of PV array is necessary.And the perturbation and observation (P & O) method is most widely used due to its simplicity and ease of implementation.But there is oscillation around the maximum power point caused by P & O, so this paper proposes an improved variable step size perturbation and observation (P & O) method.The method introduced power P in step change trigger conditions and step form.Variable step regional changed little when the external environment occurred a substantial change, so MPPT can keep the good dynamic and steady state accuracy under different external conditions.It improved the problem that traditional variable step size P & O method can't take into account dynamic and steady state accuracy when the external environment occurs a substantial change.Compared before and after the improvement of the two methods in the simulation and experiment, the results show that the improved variable step size P & O method is correct and effective.关键词
最大功率点跟踪/变步长/扰动观察法/光伏发电系统Key words
maximum power point tracking(MPPT)/variable step size/perturbation and observation (P & O) method/PV generation system分类
信息技术与安全科学引用本文复制引用
于子捷,魏晨曦,田芳芳,胡骢,耿乙文..一种改进型扰动观察法在最大功率点跟踪中的应用[J].电测与仪表,2017,54(15):113-119,7.
